SEOwl - Next-generation Rank Tracker & SEO Monitoring solution that understands modern SEO, finally
Automatic Backlinks - Completely free software that will automatically find and manage quality link partners for your sites. Boost your search engine ranking with Automatic Backlinks!
Linkody - Save time and money by managing your SEO linkbuilding with Linkody.
shorturl.is - Make long url's short. Statistics included!
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
Aves API - Aves API is the insanely fast SERP API that enables you to scrape Google search results without blocking.